C++ impact and status on Exercism

C++

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C++ Track Management

This page provides the Exercism community with the information and tools needed to manage the C++ track.

Students

138,412

Submissions

1,796,188

Mentoring Discussions

13,086

The C++ track needs attention ⚠️

Building

C++ syllabus

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Help create the track syllabus: is a set of concepts and learning exercises put together to teach foundational elements of the programming language.

Next goal: Create a complete syllabus with at least 20 concepts. Find out more.

19 concepts being taught

Includes

7,612 learnt

Strings

7,612 learnt

Basics

13,932 learnt

Numbers

5,628 learnt

Namespaces

9,035 learnt

Booleans

9,366 learnt

Comparisons

4,799 learnt

If Statements

4,799 learnt

Arrays and Vectors

2,820 learnt

Loops

3,929 learnt

Classes

3,340 learnt

References

2,203 learnt

Enumerations

2,461 learnt

Switch Statements

2,461 learnt

Headers

1,593 learnt

Functions

1,092 learnt

Auto

152 learnt

Smart Pointers

152 learnt

Pointers

399 learnt

15 active learning exercises

Started

Attempts

Completions

Mentoring requests

Log Levels

10,955

80,213 (avg. 7.3)

7,612 (69.5%)

209 (1.9%)

Lasagna

19,312

80,644 (avg. 4.2)

13,932 (72.1%)

232 (1.2%)

Freelancer Rates

6,398

55,266 (avg. 8.6)

5,628 (88.0%)

70 (1.1%)

Last Will

10,915

61,642 (avg. 5.6)

9,035 (82.8%)

119 (1.1%)

Pacman Rules

10,293

55,304 (avg. 5.4)

9,366 (91.0%)

104 (1.0%)

Vehicle Purchase

5,070

32,406 (avg. 6.4)

4,799 (94.7%)

40 (0.8%)

Making the Grade

3,429

57,154 (avg. 16.7)

2,820 (82.2%)

91 (2.7%)

Interest is interesting

4,250

30,976 (avg. 7.3)

3,929 (92.4%)

41 (1.0%)

Ellen's Alien Game

3,645

27,028 (avg. 7.4)

3,340 (91.6%)

46 (1.3%)

Election Day

2,440

26,826 (avg. 11.0)

2,203 (90.3%)

41 (1.7%)

Troll the Trolls

2,737

26,001 (avg. 9.5)

2,461 (89.9%)

59 (2.2%)

Doctor Data

2,022

28,841 (avg. 14.3)

1,593 (78.8%)

41 (2.0%)

lasagna-master

1,307

17,750 (avg. 13.6)

1,092 (83.6%)

18 (1.4%)

Power of Troy

219

2,832 (avg. 12.9)

152 (69.4%)

1 (0.5%)

Speedywagon Foundation

498

4,643 (avg. 9.3)

399 (80.1%)

5 (1.0%)

Practice Exercises

Learn More

Practice Exercises are exercises designed to allow students to solve an arbitrary problem, with the aim of them making use of the concepts they have learned so far.

Synced primary repo: 6f5995990491c2dbbbbe1e5ea1aae0eeb53ff187 (Updates should be instant)

Next goal: Implement 136 practice exercises. Find out more.

82 active practice exercises

Started

Attempts

Completions

Mentoring requests

Hello World

103,070

275,179 (avg. 2.7)

53,115 (51.5%)

12 (0.0%)

Leap

24,100

100,755 (avg. 4.2)

12,650 (52.5%)

2,531 (10.5%)

Reverse String

13,749

89,660 (avg. 6.5)

8,847 (64.3%)

1,512 (11.0%)

Space Age

8,751

68,026 (avg. 7.8)

4,304 (49.2%)

1,145 (13.1%)

Triangle

5,920

42,538 (avg. 7.2)

3,561 (60.2%)

774 (13.1%)

Grains

4,099

28,209 (avg. 6.9)

3,281 (80.0%)

603 (14.7%)

Raindrops

7,286

50,721 (avg. 7.0)

5,919 (81.2%)

651 (8.9%)

Pangram

3,324

24,094 (avg. 7.2)

2,651 (79.8%)

494 (14.9%)

Two Fer

3,083

12,486 (avg. 4.0)

2,562 (83.1%)

87 (2.8%)

Grade School

3,377

31,346 (avg. 9.3)

2,186 (64.7%)

233 (6.9%)

Hamming

4,879

14,374 (avg. 2.9)

3,954 (81.0%)

366 (7.5%)

Nucleotide Count

3,322

17,408 (avg. 5.2)

2,459 (74.0%)

282 (8.5%)

RNA Transcription

2,607

13,316 (avg. 5.1)

2,142 (82.2%)

173 (6.6%)

Collatz Conjecture

2,172

10,059 (avg. 4.6)

1,830 (84.3%)

55 (2.5%)

Difference of Squares

3,740

12,280 (avg. 3.3)

3,266 (87.3%)

182 (4.9%)

Nth Prime

2,438

16,687 (avg. 6.8)

1,633 (67.0%)

139 (5.7%)

Queen Attack

2,099

16,891 (avg. 8.0)

1,378 (65.7%)

116 (5.5%)

Sieve

2,030

11,820 (avg. 5.8)

1,626 (80.1%)

133 (6.6%)

Say

1,719

15,132 (avg. 8.8)

944 (54.9%)

123 (7.2%)

Gigasecond

2,970

6,234 (avg. 2.1)

2,030 (68.4%)

256 (8.6%)

Secret Handshake

1,409

7,413 (avg. 5.3)

1,150 (81.6%)

51 (3.6%)

Allergies

2,422

17,736 (avg. 7.3)

1,567 (64.7%)

95 (3.9%)

Protein Translation

1,535

10,165 (avg. 6.6)

1,275 (83.1%)

54 (3.5%)

Sum of Multiples

1,749

6,663 (avg. 3.8)

1,346 (77.0%)

73 (4.2%)

Prime Factors

1,551

6,273 (avg. 4.0)

1,257 (81.0%)

51 (3.3%)

Robot Name

1,666

11,497 (avg. 6.9)

1,152 (69.1%)

117 (7.0%)

Clock

1,232

7,385 (avg. 6.0)

704 (57.1%)

54 (4.4%)

Meetup

969

3,513 (avg. 3.6)

531 (54.8%)

25 (2.6%)

Beer Song

1,028

6,419 (avg. 6.2)

778 (75.7%)

35 (3.4%)

Atbash Cipher

2,170

34,645 (avg. 16.0)

1,619 (74.6%)

107 (4.9%)

Trinary

1,919

13,435 (avg. 7.0)

1,670 (87.0%)

42 (2.2%)

Binary Search

1,252

9,180 (avg. 7.3)

854 (68.2%)

42 (3.4%)

Phone Number

1,138

5,859 (avg. 5.1)

816 (71.7%)

42 (3.7%)

Series

871

3,734 (avg. 4.3)

679 (78.0%)

24 (2.8%)

Complex Numbers

1,141

6,653 (avg. 5.8)

703 (61.6%)

26 (2.3%)

Food Chain

1,001

3,103 (avg. 3.1)

725 (72.4%)

28 (2.8%)

Roman Numerals

919

3,584 (avg. 3.9)

685 (74.5%)

24 (2.6%)

Bob

3,102

22,161 (avg. 7.1)

2,503 (80.7%)

271 (8.7%)

Word Count

1,476

5,956 (avg. 4.0)

1,112 (75.3%)

92 (6.2%)

Circular Buffer

923

7,122 (avg. 7.7)

540 (58.5%)

45 (4.9%)

Crypto Square

762

5,630 (avg. 7.4)

508 (66.7%)

22 (2.9%)

ETL

1,437

3,495 (avg. 2.4)

1,167 (81.2%)

43 (3.0%)

Matching Brackets

1,246

8,028 (avg. 6.4)

995 (79.9%)

37 (3.0%)

Anagram

1,613

4,907 (avg. 3.0)

1,253 (77.7%)

97 (6.0%)

Binary Search Tree

1,156

5,840 (avg. 5.1)

372 (32.2%)

44 (3.8%)

Luhn

1,555

16,814 (avg. 10.8)

1,263 (81.2%)

61 (3.9%)

Acronym

1,009

4,394 (avg. 4.4)

774 (76.7%)

30 (3.0%)

Armstrong Numbers

1,552

7,197 (avg. 4.6)

1,350 (87.0%)

34 (2.2%)

Binary

1,283

4,835 (avg. 3.8)

1,024 (79.8%)

84 (6.5%)

Hexadecimal

1,504

7,322 (avg. 4.9)

1,275 (84.8%)

79 (5.3%)

Isogram

2,492

4,786 (avg. 1.9)

1,594 (64.0%)

100 (4.0%)

Pascal's Triangle

887

3,199 (avg. 3.6)

680 (76.7%)

25 (2.8%)

Perfect Numbers

376

2,378 (avg. 6.3)

315 (83.8%)

6 (1.6%)

Scrabble Score

1,227

3,532 (avg. 2.9)

941 (76.7%)

90 (7.3%)

All Your Base

879

5,153 (avg. 5.9)

592 (67.3%)

48 (5.5%)

Robot Simulator

1,272

5,106 (avg. 4.0)

721 (56.7%)

54 (4.2%)

Bank Account

644

2,809 (avg. 4.4)

312 (48.4%)

38 (5.9%)

Darts

2,095

13,672 (avg. 6.5)

1,852 (88.4%)

30 (1.4%)

Largest Series Product

353

2,446 (avg. 6.9)

270 (76.5%)

10 (2.8%)

Isbn Verifier

500

3,574 (avg. 7.1)

383 (76.6%)

13 (2.6%)

Linked List

210

1,609 (avg. 7.7)

119 (56.7%)

8 (3.8%)

Simple linked list

650

5,274 (avg. 8.1)

406 (62.5%)

19 (2.9%)

High Scores

595

5,000 (avg. 8.4)

530 (89.1%)

12 (2.0%)

Eliud's Eggs

703

2,848 (avg. 4.1)

637 (90.6%)

11 (1.6%)

Diamond

200

1,502 (avg. 7.5)

152 (76.0%)

4 (2.0%)

Run-Length Encoding

216

2,315 (avg. 10.7)

170 (78.7%)

5 (2.3%)

Rotational Cipher

727

5,375 (avg. 7.4)

646 (88.9%)

12 (1.7%)

Resistor Color

234

1,275 (avg. 5.4)

188 (80.3%)

4 (1.7%)

Resistor Color Duo

211

991 (avg. 4.7)

173 (82.0%)

2 (0.9%)

Minesweeper

183

1,105 (avg. 6.0)

119 (65.0%)

2 (1.1%)

Sublist

143

1,147 (avg. 8.0)

88 (61.5%)

3 (2.1%)

Zebra Puzzle

133

574 (avg. 4.3)

55 (41.4%)

5 (3.8%)

List Ops

172

1,947 (avg. 11.3)

99 (57.6%)

4 (2.3%)

Knapsack

127

1,050 (avg. 8.3)

76 (59.8%)

2 (1.6%)

Two Bucket

125

583 (avg. 4.7)

63 (50.4%)

2 (1.6%)

Yacht

159

1,368 (avg. 8.6)

112 (70.4%)

0 (0.0%)

Kindergarten Garden

509

4,272 (avg. 8.4)

376 (73.9%)

12 (2.4%)

D&D Character

229

1,603 (avg. 7.0)

144 (62.9%)

1 (0.4%)

Spiral Matrix

142

903 (avg. 6.4)

86 (60.6%)

4 (2.8%)

Parallel Letter Frequency

175

800 (avg. 4.6)

93 (53.1%)

5 (2.9%)

Pig Latin

160

1,418 (avg. 8.9)

80 (50.0%)

4 (2.5%)

Rail Fence Cipher

108

875 (avg. 8.1)

61 (56.5%)

2 (1.9%)

54 unimplemented practice exercises

Affine Cipher

Alphametics

Baffling Birthdays

Book Store

Bottle Song

Bowling

Change

Connect

Conway's Game of Life

Custom Set

Dominoes

DOT DSL

Error Handling

Flatten Array

Forth

Go Counting

Grep

Hangman

House

Killer Sudoku Helper

Ledger

Lens Person

Markdown

Matrix

Micro Blog

OCR Numbers

PaaS I/O

Palindrome Products

Poker

POV

Proverb

Pythagorean Triplet

Rational Numbers

React

Rectangles

Relative Distance

Resistor Color Trio

REST API

Saddle Points

Satellite

SGF Parsing

Simple Cipher

Square Root

State of Tic-Tac-Toe

Strain

Swift Scheduling

Tournament

Transpose

Tree Building

Twelve Days

Variable Length Quantity

Word Search

Wordy

Zipper

1 foregone practice exercise

Point Mutations

View data

Programming Tags

Learn More

Help manage the tags used to group, filter and recommend solutions, approaches and articles.

0 tags

Test Runner

Learn More

Create Test Runners that have the single responsibility of taking a solution, running all tests and returning a standardized output.

Current version: fa924a0b0728c894eacbeabe6b9656ec62416b66 (Takes up to 10 mins to deploy)

Total Test Runner Runs

1,757,942

Test Run Pass Rate

16.4% (289002)

Test Run Fail Rate

24.5% (430111)

Test Run Error Rate

59.1% (1038829)

Representer

Learn More

Build a Representer: a bit of code that has the single responsibility of taking a solution and returning a normalized representation of it.

Current version: 29eab0a802586f7bc346f598a1ca98a74deb7547 (Takes up to 10 mins to deploy)

Total Representer Runs

309,770

Total Representation Comments Made

52,295

Feedback Given Frequency

16.9%

Analyzer

Learn More

Build an Analyzer for C++: Exercism's analyzers automatically assess student's submissions and provide mentor-style commentary.

Next goal: Build an Analyzer. Find out more.

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The C++ track needs attention ⚠️

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